Some veterans and young Catholics have voiced anger that the Aug. 1 concert falls on the 68th anniversary of the uprising.

The 63-day rebellion ended in the deaths of up to 200,000 Poles and the destruction of the city. Every year, the anniversary is marked with somber commemorations, with the wailing of a siren, a minute of silence and special prayers in churches.

City officials proposed airing a clip about the revolt to allay the veterans’ feelings.

Ania Pietrzak, a spokeswoman for concert organizer Live Nation, said Wednesday that organizers had agreed to that.

“It is an important moment in Polish history, so we have decided to remind people of that moment,” she said.

Poland is a largely Roman Catholic country where some people object to what they consider Madonna’s sacrilegious use of Christian imagery. Madonna’s last concert in Warsaw, in 2009, also sparked protests because it fell on Aug. 15, the holiday celebrating the heavenly assumption of the Virgin Mary.

Several billboards promoting the latest concert were defaced, including some with Madonna’s face crossed out.